baber/WOPTO huggingface dataset:
Patent JP-S63223602-A (JP)
Title: Diffraction grating
Inventor: TAKAHASHI KAZUHISA
IPC: G02B5/18
Filed: 1987-03-12
Abstract: PURPOSE:To obtain a diffraction grating which does not require patterning of a photoresist and does not require crystal growth on semiconductor layers having ruggedness by forming the diffraction grating of superlattice semiconductor layers which are periodically and alternately disposed and the semiconductor layers which are different in refractive index therefrom. CONSTITUTION:This diffraction grating is constituted by periodically and alternately disposing the superlattice semiconductor layers 11 and disordered layers 12 having different refractive indices. The semiconductor layers 11 are formed by alternately laminating InGaAsP layers and InP layers by crystal growth on an n-InP layer 1. Laser light interfered at specified intervals is projected onto the surface thereof to partially form the disordered layers 12. The need for etching of the InP layer with the photoresist as a mask, the crystal growth on the InP layer formed with periodic rugged structures, etc., is thereby eliminated and the periodic structures of the refractive indices are formed with good contrast. The diffraction grating having high diffraction efficiency is thus obtd.
Patent JP-H01232872-A (JP)
Title: Original reader
Inventor: HASEGAWA KAZUHIKO
IPC: H04N1/04
Filed: 1988-03-11
Abstract: PURPOSE:To obtain original read information without dimensional deformation even if the distance from a transparent board till the original is fluctuated by adjusting the scanning line pitch of a read head in response to the height up to the read face of the original. CONSTITUTION:A distance measuring instrument 10 moves in preceding over the read head 2 to measure the height of the original 100 up to the read face by a prescribed pitch respectively. An arithmetic circuit 11 obtains the length of the original read face for each pitch from the difference of the height up to the original read face at the preceding and succeeding measuring position and the measured pitch length. A control circuit 13 controls motors 6, 9 based on the length of the original read face and the pitch length to adjust the scanning line pitch of the read head 2.
Patent JP-H01232899-A (JP)
Title: Manufacture of speaker diaphragm
Inventor: SUENAGA JUNICHI
IPC: H04R31/00
Filed: 1988-03-11
Abstract: PURPOSE:To easily manufacture a thin diaphragm or a diaphragm with a large diameter with productivity by rolling an inject molding component and forming a speaker diaphragm while the component is in the molten state to a degree capable of rolling. CONSTITUTION:A metallic die comprising injection parts 1, 2 and a cone part 3 is used and the component comprising 100-30wt.% of polymer and 0-70wt.% of fibrous packing agent is used to form the speaker diaphragm. In the case of forming, while the injected molding component stays in the molten state to a degree where the component is able to be rolled, the component is rolled to form the speaker diaphragm.
Patent JP-H09251139-A (JP)
Title: Aligner and image forming device
Inventor: HARADA KENTARO
IPC: G03G15/04
Filed: 1996-03-15
Abstract: PROBLEM TO BE SOLVED: To provide an aligner and an image forming device constituted so that scanning with light is performed without causing a vortex on the outer peripheral part of a polygon mirror even when the polygon mirror is rotated at high speed with simple constitution. SOLUTION: The aligner is equipped with the polygon mirror 36 with which a photoreceptor drum 44 is scanned to form a latent image by reflecting and rotating a light beam radiated from a semiconductor laser by reflection surfaces 36a..., and disks 81 and 81 disposed at both side parts of the mirror 36, constituted so that the outer peripheral part is projected from the reflection surfaces 36a... of the mirror 36 and separated to be opposed, and integrally holding external gas in a space part K formed by the opposed surface of the outer peripheral part and the reflection surface 36a of the mirror 36 in rotating.
Patent JP-H10256921-A (JP)
Title: Method and device for modulating and demodulating digital data
Inventor: SASAKI HIROSHI
IPC: H03M13/00
Filed: 1997-03-13
Abstract: PROBLEM TO BE SOLVED: To provide a digital data modulation/demodulation system which has a powerful error correction capability and has the processing simplified. SOLUTION: At the time of modulation of digital data used for transmission or recording of N-bit (for example, 8-bit) data, N-bit data is converted to one (M+K)-bit data which is selected from a group of 2N (M+K)-bit data, where a K-bit (for example, 4-bit) error correction and check symbol is added to M-bit (for example, 9-bit) data (N<M), in accordance with a prescribed rule. At the time of demodulation, this (M+K)-bit data is demodulated to N-bit data after error correction data error detection.
Patent JP-H04275121-A (JP)
Title: Apparatus for molding ferrule
Inventor: CHISAKA ASANOSUKE
IPC: B29L23/00
Filed: 1991-03-01
Abstract: PURPOSE:To prevent the breakage of a core and to enhance the accuracy of a molded product in a ferrule molding apparatus. CONSTITUTION:A fixed template 10 is provided between a fixed mounting plate 3 and a mold template 4 so as to freely come into contact with and separate from the mounting plate 3 in such a state that a gap (a) is provided from the mounting plate so as to correspond to the length of the core 1 inserted in a cavity 7. The cavity 7 is formed in a through-hole shape. A molded product release mechanism 6 is equipped with the cavity forming lever 15 inserted and fitted in the cavity 7 in a slidable manner and a core support hole 15a is formed to the cavity forming lever 15. The core 1 is set so that the leading end thereof is arranged at the outlet part 11a of an insertion hole 11. The cavity forming lever 15 is retracted by the injection pressure of a resin while the core 1 is supported in the core support hole 15a at the time of injection and thrusts out a molded product 16 along with a molded product thrusting-out pin 5 at the time of release.
Patent JP-S51136596-A (JP)
Title: Method for processing mot her liquid in the production of sodium dithionite
Inventor: YAMAMOTO KOUSUKE
IPC: C01B17/66
Filed: 1975-05-21
Abstract: PURPOSE: To use effectively residual sodium formate, and methanol, to make cost down, and to remove the source of COD from waste water by removing sodium thiosulfate produced as a by-product of the reaction in the method of manufacture of sodium dithionite by the reaction of sodium formate, compound of alkali metal and surfurous anhydride in alcohol containing water. 
     COPYRIGHT: (C)1976,JPO&Japio
Patent JP-S63227420-A (JP)
Title: Four-wheel drive vehicle
Inventor: FUJIWARA KIYOSHI
IPC: B60K17/344
Filed: 1987-03-13
Abstract: PURPOSE:To make the lengths of both right and left axle shafts equal to each other without increasing the bent angle of a propeller shaft and to aim at reducing the minimum turning radius and at enhancing the drive comfortability by disposing a differential gearing in the center part of a drive wheel axle. CONSTITUTION:A front differential gearing 4 in its entirety is disposed in a casing 20 which is composed of a connecting part 20a extending rearward, for storing a drive shaft 11, and an extension 20b located on the transfer device side of axle shafts 10A, 10B. In this arrangement, the extension 20b is provided thereto with left and right demounting boss parts 20c, 20b. Further, the rear end of the drive shaft 11 located in the extension 20b is attached thereto with a toothed pulley 21 which is coupled to another toothed pulley 22 associated with a propeller shaft, through the intermediary of a chain 23. Further, there is provided a power transmission mechanism 24 coupling between the propeller shaft and the drive shaft 11 on the propeller shaft arranging side of the extension 20b.
Patent JP-H04211596-A (JP)
Title: Video signal recorder
Inventor: NISHIMURA AKIRA
IPC: H04N9/80
Filed: 1991-03-01
Abstract: PURPOSE:To satisfactorily record and reproduce HDTV signals by distributing the time divided multiplexed signals of brightness signals and chroma signals to two channels and defining the chroma signals of each of the respective channels to one. CONSTITUTION:Line memories 6r, 6b extract the 1st and 2nd chroma signals alternately in one horizontal period each from the video signals consisting of the brightness signals and the 1st and 2nd chroma signals and subject the extracted chroma signal to time base compression. The brightness signals are subjected to time base expansion in line memories 3A, 3B. Adders 10A, 10B time divided multiplex the brightness signals subjected to the time base expansion and the chroma signals. The time divided multiplexed signals are distributed to the two channels in such a manner that the kinds of the chroma signals of the respective channels are made single in a frame memory 11. The distributed signals are sequentially recorded with two times of scanning for one field by two channel heads 17A, 17B having the azimuth angles varying from each other by each of the two channels.
Patent JP-S62216760-A (JP)
Title: Printing head driving mechanism
Inventor: TOKUNAGA HARUHIKO
IPC: B41J2/245
Filed: 1986-03-18
Abstract: PURPOSE:To prevent vibration from being generated due to high-speed reciprocation and reduce the size of a device, by providing a printing head driving mechanism with a pair of wrapped members wrapped around outer peripheries of freely rotatable pulleys in opposite directions, and fixing ends of each of the wrapped members respectively to a shaft connected to a counterbalance and a shaft connected to a printing head. CONSTITUTION:Two wires 11a, 11b are wrapped around a pair of freely rotatable pulleys 12 on a base 13, and ends of the wires are fixed to an intermediate plate 10. The wires 11a, 11b are turned back through shafts 15a, 15b provided on an intermediate plate 9, the part of the shaft 15a and the part of the shaft 15b can be moved relatively to each other, and a spring 16 is disposed therebetween for applying a tension on the wires. With a linear motor 2 moved in the direction of a dotted-line arrow, the pulleys 2 are rotated in the direction of dotted-line arrows under the function of the wires, and a printing head 1 is moved in the direction of a dotted-line arrow. The spring 16 prevents an error in the position of the head 1 from being generated, and the head 1 is reversed while absorbing vibrations by the linear motor 2. This reversing mechanism is constructed simply by disposing the pulleys 12 on one side of a device, and the size of the device can be reduced.
Patent JP-S54150359-A (JP)
Title: Extruder
Inventor: NAKAMURA KIYOE
IPC: B21C23/00
Filed: 1978-05-19
Abstract: PURPOSE: To reduce the cost depending on the inexpensive direct extrusion, and to facilitate the discharge of the shell, by splitting the shell formed at the clearance while the extrusion work, between two edge type shoulder portions when the extrusion is completed and the container is retreated.  
     CONSTITUTION: The billet 2 of copper, copper alloy, etc., is inserted into the container 1, and is pushed from the backside by stem 4 through the dummy block 3; hereby, the flat plate type extruded product 15 is continuously extruded from the dies hole 6a. In this case, the defective part of the billet surface is extruded and peeled away forming the shell 13, through the clearance 12 formed between the edge type shoulder portions 8 and 10, at the fitting portion of the die holder 5 and the container 1. The shell 13 is split into eight pieces by the guide projection 11, and the discharge of the shell 13 becomes easy. After the extrusion is completed, the container 1 is retreated; hereby, the edge 8c of the edge type shoulder portion 8 and the edge 10a of the portion 10 close the crooked clearance 12, and split the shell 13 to separate pieces. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S59183987-A (JP)
Title: Method for preventing discoloration around indentation in spot welding
Inventor: HORIUCHI HAJIME
IPC: B23K11/00
Filed: 1983-04-04
Abstract: PURPOSE:To prevent discoloration by the effect of the heat generated in the outside surface of a weld zone by shielding the periphery of the weld zone from the atm. in a non-oxidative gas and performing spot welding in said gaseous atmosphere. CONSTITUTION:A blow port 5 for prescribed inert gas or non-oxidative gas 4 is provided near an electrode rod 1 and said gas is ejected therefrom. The gas 4 is otherwise ejected into a toric shape from the periphery of the rod 1. The periphery in the weld zone is covered with a case 6 and the gas 4 is filled therein. Inert gas such as gaseous argon, gaseous helium or a gaseous mixture added with a small amt. of gaseous carbon dioxide to gaseous nitrogen or gaseous argon is used for the inert or non-oxidative gas to be used in this stage.
Patent JP-S51135411-A (JP)
Title: Arriving power comporison circuit
Inventor: TAKAHASHI KIYOAKI
IPC: H04B7/04
Filed: 1975-05-20
Abstract: PURPOSE:Comparison of S/N of two received signals of diversity and switching/ composing of the signals according to the magnitude of the difference at a relay receiver lacking a demodulator.
Patent JP-S54151536-A (JP)
Title: Production of both side clad steel plate
Inventor: ABU MASARU
IPC: B23K20/08
Filed: 1978-05-22
Abstract: PURPOSE: To provide both side clad steel of less work hardened base material and free of thickness variations, a first clad material is explosion contacted to base material surface, a second clad material is placed in the back of the base material, and explosion contacted at right angle to the first explosion.  
     CONSTITUTION: Clad explosion contact to the back of base material is made at approximate right angle to the first explosion contact. For round material, a first explosion contact is made in the direction of 1, a second direction is selected at right angle direction 2 to the axis 1 and the center P, or in the range of upper and lower positions 2', 2" within 15 degree center angle. For square material, if a first explosion contact is made in the direction of 1, a second direction is selected at right angle direction 2 to the first side, any position 2, 2', 2" on the side. Prior to the second explosion contact, the first strain is corrected with reference to the material back surface and then the material is polished to be ready for the second explosion. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-H09231818-A (JP)
Title: Panel for emergency guide light
Inventor: HASHIMOTO NAOKI
IPC: F21S9/02
Filed: 1996-02-22
Abstract: PROBLEM TO BE SOLVED: To widen the degree of freedom in the installing position of an emergency guide light and reduce the man-hours in works by furnishing an guide light units including a light emitting element, a lighting circuit for it and a battery, and providing a display plate which is mounted removably and displays the relevant information. SOLUTION: The panel 10 of this emergency guide light is composed of a facial panel 11a, a casing 13 fixed to the center of its inner surface, and a display plate 21 which is attached to the front surface of the casing 13 in such a way as flush with the panel 11a and removably. The casing 13 is equipped internally with an inspection unit 22 to inspect failure in the circuits and battery, a guide light unit 23, and a wiring connection box 24 to connect them. The light unit 23 is composed of a fluorescent lamp 23a as a light emitting element, a lighting circuit 23b for it, and a battery 23c to supply electric power to the circuit 23b, and a metal fixture 23d for lamp which is fixed to the casing 13.  According to this configuration, installing anew of panel 10, its movement, and removal can be performed simply without requiring troublesome wiring works, to lead to widening of the degree of freedom in installation.
Patent JP-H09224600-A (JP)
Title: Production for dumpling stuffed product
Inventor: AOKI MICHIHIRO
IPC: A23L35/00
Filed: 1996-02-22
Abstract: PROBLEM TO BE SOLVED: To obtain a dumpling stuffed product such as 'giaoz', 'wantan' which are excellent in eating feeling and sanitary in a short time by processing an steam-kneaded dough to form a film dough so as to wrap fillings. SOLUTION: A gelatinized dough kneaded and uniformized through the use of steam and excellent in viscoelasticity is processed into a film dough while providing viscoelasticity, and desired fillings are wrapped with the dough. Since the insertion and filling up of fillings and the shape-correction can be performed at high temp., plural noodle roll rollers and a hand powder splinkling steamer are unnecessitated.
Patent JP-H07259910-A (JP)
Title: Self-suction-and-discharge type fluid pneumatic type macpherson strut with internal level controller
Inventor: BUERUNAA KUTSUFUHOIZAA
IPC: F16F9/48
Filed: 1995-02-24
Abstract: PURPOSE: To manufacture simply and at low cost using a small number of members without lowering performance by controlling fluid connection between a low pressure chamber and a pump cylinder by an inlet valve, and controlling fluid connection between the pump cylinder and a high pressure side working space by a pressure valve. CONSTITUTION: An actuating cylinder 11 has one or a plurality of starting holes 12. When an actuating piston 7 moves outward through the starting hole 12, pressure compensation occurs between a high pressure space 3 and a low pressure space 4, that is, during each stroke of the actuating piston 7 in the actuating cylinder 11, a buffer is fed into the high pressure side working space 3 from a pump cylinder 1 through a pressure valve 6. The approropriate buffer flows into the pump cylinder 1 from the low pressure space 4 through an inlet valve 2, and the actuating piston 7 constantly moves toward the piston rod outlet side until the starting hole 12 communicates with the high pressure side working space 3. The actuating piston 7 proceeds again to a specified level in the actuating cylinder 11 by successive pressure decrease.
Patent JP-S60203118-A (JP)
Inventor: MATSUDA YOSHIMASA
IPC: A01F12/32
Filed: 1984-03-27
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H10322752-A (JP)
Title: Mobile station position estimating method in cellular mobile communication, base station device and mobile station device
Inventor: KAMIBAYASHI SHINJI
IPC: H04W64/00
Filed: 1998-03-11
Abstract: PROBLEM TO BE SOLVED: To provide a mobile station position estimating method in cellular mobile communication, which can easily estimate the position of a mobile station, in general cellular mobile communication in which base stations are asynchronous, and to provide a base station device and a mobile station device. SOLUTION: The mobile station device 100 converts a first peculiar signal system (PN1) from a PN1 generation part 101 into a prescribed format in a transmission signal processing part 104 and transmits it to the base station device 200 from a transmission part 105 as a position estimation reference signal. The base station device 200 transmits a second peculiar signal system (PN2) from a PN2 generation part 202 to the mobile station 100 synchronously with the first peculiar signal system (PN1) received in a reception part 206. The mobile station 100 compares the phase of the transmitted first peculiar signal system (PN1) with that of the second peculiar signal system (PN2) in a phase comparison part 108 and a phase difference is obtained.  A distance calculation part 109 calculates an estimated distance between the base station 206 and the mobile station 100 based on the phase difference and estimates the position of the mobile station.
Patent JP-S59186831-A (JP)
Title: Constant-pitch dropping device of master sheet
Inventor: HONMA TOMOJI
IPC: B65G47/30
Filed: 1983-04-05
Abstract: PURPOSE:To allow constant-pitch alignment simply and reliably by providing a lifting frame between a transport conveyor and a stock conveyor connected to each other with a fall and providing a hook on this frame so as to be swayed when the frame is lifted or lowered. CONSTITUTION:A transport conveyor 1 is connected to a stock conveyor 2 through a slide rail 3 and with a fall, and a lifting frame 5 movable up and down between both conveyors is provided at the connection section of both conveyors. A hook 12 and a guide 8 are provided on this frame 5, and the hook 12 is allowed to sway when the lifting frame 5 is lifted or lowered, thereby the foremost master sheet Ka is hooked by the hook 12 in sequence from the conveyor 1 and is dropped on the conveyor 2 at a constant pitch, thus allowing constant-pitch alignment simply and reliably.
Patent JP-S62216394-A (JP)
Inventor: KIMURA NOBUMASA
IPC: H05K3/46
Filed: 1986-03-18
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-S54151705-A (JP)
Title: Method of cleaning up thermoelectric power plant
Inventor: KUDOU YOSHIO
IPC: F01K9/00
Filed: 1978-05-20
Abstract: PURPOSE: To clean up a thermoelectric power plant effectively in short time by introducing pure water from deaerator water storage tank through a minimum flow tube to return it to the tank and to heat it for use.  
     CONSTITUTION: Pure water added with hydrazine in a deaerator water storage tank 9 and flown out from the tank 9 by a feed water pump 13 is returned to the tank 9 through a minimum flow tube 17 circularly to thereby heat it to 100 to 180°C. The water thus heated cleans up the high pressure pre-bioler system. 
     COPYRIGHT: (C)1979,JPO&Japio
Patent JP-S57176082-A (JP)
Title: Electric field curtain device
Inventor: WATANABE TOSHIO
IPC: G03G21/00
Filed: 1981-04-23
Abstract: PURPOSE:To eliminate the occurrence of aerial discharge while the velocity of an air flow with mixed toner is suppressed below a certain amount, by providing vertical barriers at prescribed intervals to a group of electric field curtain electrodes for stopping the passage of electrified particles where electrode wires for AC high voltage application and earth electrode wires are provided alternately in parallel. CONSTITUTION:A cleaning station 10 is provided with a cleaning brush storage part 11, a dust roll storage part 12, a conveying-auger storage part 13, and a filter equipment part 14, and a conveyance path 14' for air is formed extending from the exit side of the storage part 12 to a filter member 7; and an electric field curtain electrode group 8 is provided, and a toner storage part 9 is arranged right under it. In the electric field curtain electrode group 8, an AC voltage is applied between adjacent electrodes among parallel linear electrodes  15 and 16. Then, the linear electrodes 15 and 16 are provided with barriers A  like insulating sheets 17 at intervals of 4-7 electrodes.
Patent JP-H04296496-A (JP)
Title: Discharge lamp lighting device
Inventor: SOGA SEIJI
IPC: H05B41/16
Filed: 1991-03-26
Abstract: PURPOSE:To efficiently use a lamp, prevent the reduction of light flux of the lamp, and increase the dimming ratio even in high temperature area. CONSTITUTION:An oscillating circuit 7 for determining the oscillating frequency of an inverter circuit 4 for lighting a discharge lamp 5 is provided. A temperature detecting means 8 for detecting the tube wall temperature of the discharge lamp 5 is provided. According to the output of the temperature detecting means 8, the oscillating circuit 7 is controlled by a control circuit 9 so as to increase the supplied power from the inverter circuit 4 to the discharge lamp 5 at the time of low temperature. At the time of high temperature, it is controlled in the direction of lowering the tube wall temperature of the lamp so as to increase the luminescent efficiency. Therefore, the higher the temperature, the more the supplied power from the inverter circuit 4 to the discharge lamp is reduced.